BOLD MAGENTA part numbers are new for 2025 PARTS-UNLIMITED.COM 2025 | OFFROAD SPROCKETS SPROCKETS 630 SPROCKETS (CONT) 1 Ultralight. FITS MODEL STOCK GEARING STOCK CHAIN FRONT SIZE PART # REAR SIZE PART # OPTIONAL COLOR SUZUKI (CONT) RM-Z450 10-14 13-50 520-114 13T 1212-1228 47T R123-47 Silver RM-Z450 15-24 - 520-114 13T 1212-12121 48T 1211-0020 Black 14T 1212-1229 49T 1211-2771 Hard Anodized 14T 1212-12131 49T 1211-0021 Black 49T R123-49 Silver 50T 1211-0022 Black 50T R123-50 Silver 51T 1211-0023 Black 52T 1211-0024 Black RMX450Z 10 13-51 520-114 13T 1212-0088 47T R123-47 Silver RMX450Z 17-19 - 520-114 48T 1211-0020 Black 49T 1211-2771 Hard Anodized 49T 1211-0021 Black 49T R123-49 Silver 50T 1211-0022 Black 50T R123-50 Silver 51T 1211-0023 Black 52T 1211-0024 Black TRIUMPH TF250X 24 - 520-114 13T 1212-2293 42T 1211-2469 Orange 14T 1212-2294 44T 1211-2470 Orange 45T 1211-2471 Orange 45T 1211-0078 Silver 46T 1211-2808 Black 46T 1211-2472 Orange 46T 1211-0079 Silver 47T 1211-2473 Orange 47T 1211-0103 Silver 48T 1211-0045 Black 48T 1211-2782 Hard Anodized 48T 1211-2474 Orange 48T R224-48 Silver 49T 1211-0046 Black 49T 1211-1332 Blue 49T 1211-2475 Orange 49T R224-49 Silver 50T 1211-0047 Black 50T 1211-1333 Blue 50T 1211-2784 Hard Anodized 50T 1211-2476 Orange 50T R224-50 Silver 51T 1211-0048 Black 51T 1211-1334 Blue 51T 1211-2785 Hard Anodized 51T 1211-2477 Orange 51T R224-51 Silver 52T 1211-0049 Black 52T 1211-1344 Blue 52T 1211-2478 Orange 52T R224-52 Silver 53T 1211-2479 Orange YAMAHA TT-R50 06-21 - - 12T R258-420-12 - - - TT-RE50 19-21 - - 13T R258-420-13 TT-R110 11-18 - - 14T R258-420-14 TT-RE110 19-21 - - YZ65 18-24 - 520-118 14T 1212-1460 47T 1211-2060 Blue 47T 1211-2061 Silver YZ80 93-01 14-47 - 14T R258-428-14 47T 1211-0281 Black 47T 1211-0285 Blue 47T R121A47 Silver 48T 1211-0282 Black 48T 1211-0286 Blue 49T 1211-0287 Blue 50T 1211-0288 Blue FITS MODEL STOCK GEARING STOCK CHAIN FRONT SIZE PART # REAR SIZE PART # OPTIONAL COLOR YAMAHA (CONT) YZ85 (Big Wheel) 02-14 14-52 428-126 13T R257-428-13 47T 1211-0281 Black YZ85 (Big Wheel) 15-17 - - 14T R257-428-14 47T 1211-0285 Blue YZ85 03-14 15-47 428-120 47T R121A47 Silver YZ85 15-22 - 428-120 48T 1211-0282 Black YZ85 25 - 428-120 48T 1211-0286 Blue YZ85LW 22-25 - 428-124 49T 1211-0287 Blue 50T 1211-0288 Blue YZ125 80 12-48 - - - 47T 1211-0281 Black YZ125 81-82 12-49 - 47T 1211-0285 Blue YZ125 83 12-48 - 47T R121A47 Silver YZ125 84-85 12-50 - 48T 1211-0282 Black YZ125 86 12-50 - 48T 1211-0286 Blue 49T 1211-0287 Blue 50T 1211-0288 Blue YZ125 89-92 13-50 - 12T R257-520-12 49T R131-49 Silver YZ125 93-96 13-50 - 13T R257-520-13 50T R131-50 Silver YZ125 97-98 13-48 - 51T R131-51 Silver YZ125 99-01 13-48 - 12T R257-520-12 46T R150A-520-46 Silver YZ125 02-04 13-49 - 13T R257-520-13 47T R150A-520-47 Silver 48T 1211-0025 Black 48T 1211-0164 Blue 48T R150A-520-48 Silver 49T 1211-0026 Black 49T 1211-0165 Blue 49T R150A-520-49 Silver 50T 1211-0027 Black 50T 1211-0166 Blue 50T 1211-2776 Hard Anodized 50T R150A-520-50 Silver 51T 1211-0028 Black 51T 1211-0167 Blue 51T 1211-2777 Hard Anodized 51T R150A-520-51 Silver 52T 1211-0029 Black 52T 1211-0168 Blue YZ125 05-13 13-48 520-112 13T 1212-0991 46T R150A-520-46 Silver YZ125 14-20 13-48 520-114 14T 1212-0992 47T R150A-520-47 Silver YZ125 21 - 520-114 48T 1211-0025 Black YZ125 22-25 - 520-112 48T 1211-0164 Blue YZ125X 20-22 - - 48T R150A-520-48 Silver YZ125X 25 - 520-118 49T 1211-0026 Black WR250F 11-13, 15-16 13-50 520-114 49T 1211-0165 Blue WR250F 17-19, 23 - 520-114 49T R150A-520-49 Silver WR250F 20-24 - 520-116 50T 1211-0027 Black YZ250F 10-11 13-49 520-114 50T 1211-0166 Blue YZ250F 12-18 13-50 520-114 50T 1211-2776 Hard Anodized YZ250F 19-25 - 520-114 50T R150A-520-50 Silver YZ250F 60th Anniversary 16 - 520-114 51T 1211-0028 Black YZ250FX 15-22 - 520-114 51T 1211-0167 Blue 51T 1211-2777 Hard Anodized 51T R150A-520-51 Silver 52T 1211-0029 Black 52T 1211-0168 Blue
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